The SPIRE instrument (Spectral and Photometric Imaging REceiver) was developed by the Rutherford Appleton Laboratory (RAL), part of a partnership led by M. Griffin from the University of Wales in Cardiff. It comprises two distinct elements:
DAPNIA’s specific contribution was the development of SPIRE’s Detector Readout and Control Unit (DRCU): the instrument’s warm electronics (WE) comprising 4 sub-units divided in two boxes:
- Detector Control Unit (DCU), which controls the photometer and spectrometer sensors
- The Focal Plane Control Unit (FCU), which includes:
- the MCU, which controls the focal plane’s Spectrometer Mechanism (SMECm) and the Beam Steering Mechanism (BSMm);
- the SCU, which manages the thermometry, cooler, and calibration subsystems;
- and the PSU, which supplies power to all subsystems.
LAM contributed to the SPIRE instrument by: